FMSLogo Code

Fix a build-break on GNU/Linux caused by using wxHypertextLinkCtrl

Make the link to softronix.com clickable in the About box.

Implement Feature Request #91; The link to the NMSS is now clickable.
This is a promise I had made to George Mills many years ago.

Move CCenterableLink into its own header/source file.
This was done so that it can be used by aboutmultiplesclerosis.cpp.

Make the link to FMSLogo's project page clickable in "About -> FMSLogo..."
This change sets the pattern that will be applied to the other links.

Fix Bug #564; Tree recursive procedures with no base case one again throw an "out of memory" error, instead of causing FMSLogo to exit.

This fix restores the original strategy for out-of-memory that existed in FMSLogo 6.29.1, which is to allocate a reserve to be used when malloc() fails for the purpose of returning things back to normal.

This fix isn't perfect, as attempts to select "File -> Load..." after running out of memory cause FMSLogo to disappear. However, unlike bug #564, this is NOT a regression and so is likely due to some other problem.

Convert test to use windows line endings (LF -> CRLF)

Add sample code for executing the win32 function GetTempPathW with DLLCALL.

Add some sample code for calling GetEnvironmentVariableW()
This may eventually be added to the documentation, so I also added some tests for it.

Tag the source code used to produce FMSLogo 8.0.2.